Yazar "Pütün, Ayşe Eren" için listeleme
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Co-pyrolysis of oil shale and biomass
Kılıç, M.; Poyraz, Z.; Pütün, Ayşe Eren; Pütün, E. (Nis University, 2011)In this study, co-pyrolytic behaviors of oil shale and Euphorbia rigida were investigated at different temperatures in a fixed bed reactor at 450, 500, and 550 °C with a heating rate of 10 °C min-1 in the presence of ... -
Co-pyrolytic behaviors of biomass and polystyrene: Kinetics, thermodynamics and evolved gas analysis
Özsin, Gamzenur; Pütün, Ayşe Eren (Korean Institute Chemical Engineers, 2018)The pyrolytic degradation mechanism of chestnut shell (CNS) and its blend with waste polystyrene (PS) were investigated. Individual pyrolysis behavior of samples obtained separately was compared with those of the blends ... -
Comparative analysis of pyrolysis oils and its subfractions under different atmospheric conditions
Özbay Nurgül; Uzun, Başak Burcu; Varol, Esin Apaydın; Pütün, Ayşe Eren (Elsevier Science BV, 2006)In this paper comparative analysis of bio-oils and their subtraction from static, sweeping gas and steam pyrolysis of apricot pulp, a food industry waste, was investigated. Experimental studies were conducted in a well-swept ... -
Comparative studies on adsorptive removal of heavy metal ions by biosorbent, bio-char and activated carbon obtained from low cost agro-residue
Kırbıyık, Cisem; Pütün, Ayşe Eren; Pütün, Ersan (Iwa Publishing, 2016)In this study, Fe(III) and Cr(III) metal ion adsorption processes were carried out with three adsorbents in batch experiments and their adsorption performance was compared. These adsorbents were sesame stalk without ... -
A comparative study on co-pyrolysis of lignocellulosic biomass with polyethylene terephthalate, polystyrene, and polyvinyl chloride: Synergistic effects and product characteristics
Özsin, Gamzenur; Pütün, Ayşe Eren (Elsevier Sci LTD, 2018)Co-pyrolysis of waste biomass and plastics was investigated to find out whether the quality of pyrolysis products was improved. For the sake of yield and compositional comparison, three polymers (polyethylene terephthalate, ... -
Comparison between the "slow" and "fast" pyrolysis of tobacco residue
Pütün, Ayşe Eren; önal, Eylem; Uzun, Başak Burcu; Özbay Nurgül (Elsevier Science BV, 2007)In this study, the trends in yields and product compositions of slow pyrolysis and fast pyrolysis were determined and compared with each other. Slow pyrolysis of tobacco residues with particles of between 0.425 and 0.850 ... -
Composition of products obtained via fast pyrolysis of olive-oil residue: Effect of pyrolysis temperature
Uzun, Başak Burcu; Pütün, Ayşe Eren; Pütün, Ersan (Elsevier Science BV, 2007)As an essential thermochemical process, pyrolysis is mainly dependent on temperature. Temperature affects mostly product distribution and composition. In this study, compositional analysis of the products obtained by thermal ... -
Converting of oil shale and biomass into liquid hydrocarbons via pyrolysis
Kılıç, Murat; Pütün, Ayşe Eren; Uzun, Başak Burcu; Pütün, Ersan (Pergamon-Elsevier Science LTD, 2014)In this study, co-pyrolytic behaviors of oil shale and Euphorbia rigida were investigated at different temperatures in a fixed bed reactor at 450, 500, and 550 degrees C with a heating rate of 10 degrees C/min in the ... -
Çeltik sapından yapay yakıt üretiminin araştırılması
Apaydın, Esin (Anadolu Üniversitesi, 2002)Bu çalışmada, alternatif enerji kaynağı olan biyokütleden piroliz yöntemiyle sıvı yakıt eldesi araştınımıştır. Biyokütle olarak çeltik sapı seçilerek; sabit yataklı reaktörde piroliz sıcaklığının, parçacık boyutunun, ... -
The effect of pyrolysis atmosphere on bio-oil yields and structure
Önal, Eylem; Uzun, Başak Burcu; Pütün, Ayşe Eren (Taylor & Francis Inc, 2017)A food industry waste, almond shell, was pyrolyzed under three different environment static, nitrogen, and steam to produce bio-oil and its derivatives. The oil yield obtained at pyrolysis temperature of 600 degrees C was ... -
Effect of steam on the pyrolysis of biomass
Pütün, Ayşe Eren; Özbay Nurgül; Pütün, Ersan (Taylor & Francis Inc, 2006)A comparative study of the thermochemical behavior of cottonseed cake in static, nitrogen and steam atmospheres has been carried out. The influence of the different atmospheres in the yield and composition were observed. ... -
An energy crop for producing bio-fuel: Euphorbia rigida
Uzun, Başak Burcu; Pütün, Ayşe Eren; Apaydın, E; Pütün, E (Norwegian University Sci Technol, 2005)Biomass and energy crops are the renewable energy sources, which is often believed to have the highest potential to contribute to a future sustainable energy supply to world's energy. Bioenergy is expected to become one ... -
Environmental-friendly production of carbon fiber from isotropic hybrid pitches synthesized from waste biomass and polystyrene with ethylene bottom oil
Özsin, Gamzenur; Pütün, Ayşe Eren; Nakabayashi, K.; Miyawaki, J.; Yoon, S. -H. (Elsevier Ltd, 2019)In this study, spinnable isotropic pitches (IPs) were produced by pyrolytic oils of biomass and polystyrene (PS) with ethylene bottom oil (EBO or pyrolysis fuel oil: PFO) through bromination/dehydrobromination reaction. ... -
Equilibrium, kinetic, and thermodynamic studies of the adsorption of Fe(III) metal ions and 2,4-dichlorophenoxyacetic acid onto biomass-based activated carbon by ZnCl2 activation
Kırbıyık, Cisem; Pütün, Ayşe Eren; Pütün, Ersan (Elsevier Science BV, 2017)This study investigated the preparation of activated carbon from low-cost biomass as precursor and the using of obtained activated carbon for the removal of Fe(III) and 2,4-D pollutants from model solution. The different ... -
Equilibrium, Thermodynamic, and Kinetic Studies for the Adsorption of Cadmium(II) Ions onto Activated Carbon Prepared from Euphorbia rigida by Chemical Activation
Kılıç, M.; Apaydın-Varol, Esin; Pütün, Ayşe Eren (Taylor & Francis Inc, 2014)Equilibrium, thermodynamic, and kinetic studies were carried out for the adsorption of cadmium(II) ions from aqueous solution using high surface area (2,613 m(2)/g) microporous activated carbon prepared from Euphorbia ... -
Euphorbia rigida'dan elde edilen aktif karbonun sulu çözeltilerdeki adsorpsiyon özelliklerinin ve kinetiğinin incelenmesi
Kılıç, Murat (Anadolu Üniversitesi, 2009)Bu çalışmada, Euphorbia rigida'dan kimyasal aktivasyon ile yüksek yüzey alanlı aktif karbonlar elde edilmesi, bunların karakterizasyonu ve en iyi yüzey alana sahip aktif karbonun atık sulardan kadmiyum giderimi araştırılmıştır. ... -
Evaluation of Field Debris of Chickpea Husk as a Low-Cost Biosorbent for Removal of Methylene Blue From Aqueous Solutions
Kılıç, Murat; Cepelioğullar, Özge; Özsin, Gamzenur; Uzun, Başak Burcu; Pütün, Ayşe Eren (Gazi University, Fac Engineering Architecture, 2014)In the present study, an important agricultural waste, chickpea straw, was evaluated as biosorbent material for the removal of basic dyes from aqueous solutions. Effects of solution pH, biosorbent dosage, initial dye ... -
The Evaluation of Mesoporous Materials as Catalyst in Fast Pyrolysis of Wheat Straw
Ateş, Funda; Tophanecioğlu, Sibel; Pütün, Ayşe Eren (Taylor & Francis Inc, 2015)In this study, wheat straw was chosen as a biomass sample and the fast pyrolysis of this sample was carried out with or without catalyst at different conditions in a well-swept fixed-bed reactor. Experiments were carried ... -
An experimental study on bio-oil production from co-pyrolysis with potato skin and high-density polyethylene (HDPE)
Önal, Eylem; Uzun, Başak Burcu; Pütün, Ayşe Eren (Elsevier Science BV, 2012)In order to investigate the synergistic effect of high dense polyethylene (HOPE) addition to potato skin (pS) during co-pyrolysis, pure HDPE was pyrolysed as a model compound for determination of the optimum process ... -
Farklı atıkların TGA-FTIR-MS ile ısıl davranışlarının belirlenmesi
Polat, Sevgi (Anadolu Üniversitesi, 2014)Bu çalışmada, tütün tarla atığı, demlik çay atığı ve polikarbonat hammaddelerinin termal bozunma işlemi termogravimetrik analiz (TGA) cihazıyla 20? başlangıç sıcaklığından 1000?’ye kadar 5, 10, 15 ve 20?/dk ısıtma hızlarında ...